A ball-bearing design provides increased gripping force to keep bits from slipping, which allows these chucks to take on high-torque drilling applications. Also known as super chucks.

Use the included spanner wrench to tighten the chuck for up to three times the gripping torque of hand tightening.

Made of stainless steel, these chucks maintain smooth, precise operation even when exposed to moisture and chemicals. They’re keyed, so their jaw locks securely around bits.

Secure these chucks to the slot-drive tapered spindles on older drills and mud mixers.